What happens to the galvanometer when the magnet is moved towards the coil?

When the magnet is moved towards the coil, the needle of galvanometer deflects in one direction. When the magnet is held stationary at that position, the needle of galvanometer returns back to zero position.

What happened to the galvanometer when the bar magnet was inserted in each induction coil?

When we move the magnet in or out of the coil, the needle of galvanometer gets deflected in different directions. When we insert the north pole (N) of bar magnet into the coil, the needle gets deflected in negative direction. As we increase the number of turns in the coil, the deflection increases.

What happens when we insert the magnet inside the coil?

A magnet and a coil of wire can be used to produce an electric current. A voltage is produced when a magnet moves into a coil of wire. This process is called electromagnetic induction . The direction of the induced voltage is reversed when the magnet is moved out of the coil again.

What is observed in a galvanometer connected to a coil A when a magnet is inserted inside a coil?

(i) (a) When a bar magnet is pushed into the coil of insulated copper wire connected to a galvanometer, an induced current is set-up in the coil due to change of magnetic field through it. As a result, galvanometer gives a deflection (say towards left).

How does a galvanometer deflect?

When the magnet is moved away from the coil, the galvanometer shows deflection in the opposite direction indicating the direction of induced current in the reversed direction. The direction of deflection in a galvanometer is reversed if the direction of motion (or polarity of the magnet) is reversed.

Which action will increase the deflection of the galvanometer?

The deflection of the needle of galvanometer can be increased by: Increasing the number of the turns in the coil. Using a strong magnet. Increasing the speed with which magnet is moved in the coil.

What happened to the deflection in the galvanometer when the motion of the magnetic stop?

When the magnet is held stationary, the galvanometer shows no deflection. When the north pole of the magnet is brought towards the coil, the galvanometer shows a sudden deflection indicating that a current is induced in the coil.

What happened to the middle of the galvanometer when the north pole of the bar magnet is withdrawn away from the coil?

* Now withdraw the north pole of the magnet away from the coil. Now the galvanometer is deflected toward the left, showing that the current is now set up in the direction opposite to the first. * Place the magnet stationary at a point near to the coil, keeping its north pole towards the end B of the coil.

What was the galvanometer reading when the magnet was placed stationary inside the solenoid?

When the magnet is stationary (at rest), the galvanometer reads “O” ; no current is found in the system (induced current not produced). But when the magnet is moved backward from the coil or solenoid, the deflection of the galvanometer is seen to be deflected in the direction of the magnet.

What is observed on the galvanometer?

The galvanometer is used to detect any current induced in the coil on the bottom. It was found that each time the switch is closed, the galvanometer detects a current in one direction in the coil on the bottom. (You can also observe this in a physics lab.)

What happens to the deflection of galvanometer when an iron rod is inserted into the coil connected to the galvanometer in Faraday’s coil coil experiment?

When an iron rod is inserted between the coils the magnetic flux through coils increases. Since, flux increases the induced emf also increases, hence, the deflection of the galvanometer also increases.

What happens to the deflection of the galvanometer when the motion of magnet stops?